The application of Al-Ti-B preform in Al-free Mg-Zn alloy via the yttrium addition

被引:10
作者
Fang, Canfeng [1 ]
Liu, Guangxu [1 ]
Hao, Hai [1 ]
Meng, Linggang [1 ]
Liu, Xijun [2 ]
Zhang, Xingguo [1 ]
机构
[1] Dalian Univ Technol, Sch Mat Sci & Engn, Key Lab Solidificat Control & Digital Preparat Te, Dalian 116024, Peoples R China
[2] Dalian Taisheng Logist Equipment Ltd, Dalian 116031, Peoples R China
来源
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2016年 / 658卷
基金
中国国家自然科学基金;
关键词
Mg-6Zn/TiB2p composite; Yttrium; Microstructure; Texture; Mechanical properties; MAGNESIUM MATRIX COMPOSITES; IN-SITU SYNTHESIS; MECHANICAL-PROPERTIES; MICROSTRUCTURE; TEXTURE; REINFORCEMENT; NANO-AL2O3; PARTICLES; BEHAVIOR;
D O I
10.1016/j.msea.2016.01.112
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
For the application of the Al-Ti-B system in Al-free Mg alloys, yttrium was selected and its effect on microstructure, texture and mechanical properties of Mg-6Zn/TiB2p composite was studied. The results indicate that the addition of Y could transform the extra Al (which is the by-product of the Al-Ti-B SHS reaction) into Al2Y and Al11Y3 phases, and then refined the as-homogenized microstructure of the Mg-6Zn/TiB2p composite. The Al2Y and Al11Y3 particles, as well as the TiB2 particles, effectively stimulate the occurrence of dynamic recrystallization during the cross-rolling, which contribute to the grain refinement and the formation of a weak double peak texture. That results in the comprehensive improvement of the mechanical properties. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码:376 / 380
页数:5
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